Collapsible elevator-cab gate



Jan. 20, 1931. G. c. MURPHY Y COLLAPSIBLE ELEVATOR CAB GATE Filed Feb. 4, 1930 3 Sheets-Sheet l JNVENTOR. C'. Nar/o /v UuIIIIlU Gew@ Y 7g4; '4 ./A TTORNEYS.

Jan. 20, 1931. Q Q MURPHYl 1,789,635

COLLAPSIBLE ELEVATOR CAB GATE Filed Feb. 4, 1950 3 Sheets-Sheet 2 IN VEN TOR. Geaye C'JUQO 4TT0RNEYS.

yJan. 20, 1931.` G. c. MURPHY COLLAPSIBLE ELEVATOR CAB GATE Filed. Feb. 4, v195o 3 Sheets-Sheet 3 @Iii v INVENTOR. Geo/ye amr/0&7

Y ATTURNEYS.

kthe sagging down .of the links, the conthe top of the bars 3 (Fig. 1). ,r Y As the objectof'my invention is to keep necting devices will normally be locked to prevent the bars from being folded together.

VIt is to be noted-that the outer pin 14y is on the outerV bar whereas all of the other pins on which the links are mountedare-designated by 16. t Itis also to be noted thatthe connecting devices 12 are placed near the bottom andv the bars from folding until they approac the panel 2, to accomplish the folding actlon, I place two cam-track devices 21 at the to A and Vbottom of the panel 2. Each cam-trac device comprises a horizontal plate 22 havin i cured by screws,` or like means, not shown,

. knee orjoint ofthe lso ` otallyy mounting n particularly illustrated to thel panel portion 2 of the cab. A Urooved track 24' is/fastened through the medium of ears 25. to the plate 22. This track 24 has a downwardly extending end 26with outwardly flaredjlipsg27,constituting a cam.' The rollers18 enter the track betweenlips 27 passing upward in the cam. end 26 and thence along the lhorizontal portion of the track. As the roller 18 enters the track (Fig. 7) the connectin device 12 is broken, causing the links to gold together in a compact manner, as shown in Figures 1 and k7, behind orfparallel with the panel k2. TheV bars will close` very closely together, as

in Figure 6.

A bumper -device 28 is secured on the floor 2a'in the path of movement of the gate, so thatthe innermost bar hits against the bumper fand causes the folded barsto stop within the space'of the panel 2. Y

The gate is braced near the center by'pivat 29 a plurality of cross bracmgbarsSO. While the inner end of each bar 30 is pivotally mounted on thetubular jbars 3, at 29, their outer-ends mountedr'on the bars, by reason of being ,con-

are slidably nected topin 3 1 (Fig. 8).; This pin extends through slot` 32 kformed in the bar. On pin .31` isa rollerl 33 that travels in said slot 32.V Onpin 31 is placed afwasher 34 which preventsgthe roller froml being removed: in one direction from'slot 32. whereas the kbar 30 keeps the roller in from the opposite direction. Therefore, it willV suitably brace the gate without interferin bars 3. n' i Y i Itis to be noted that the primary bars 3vare connected by hinged ork pivoted connecting devices that of their ownfweight,-r automatically :moveto a locked position,ffor holding the contiguous bars spaced, when the con-` necting devices have passed beyond the outer mouth of the cam-track devices, butwhen these connecting devices come in contact with the cam-track devices, they automatically fold together for permitting snug collapsing `of theprimary'bars. f

be seen that bars 30` ,with the folding or collapsing actionof tlg Opposlte edges In the followin Yclaims, I use the term support to broa l i designate a car or cab bod i or any part t ereof. p

ffvghile I have described the preferred embodiment of my invention and illustrated the same in' theaccompanying drawings, certain minor changes or! alternations may appear to oneskilled in t-he art to which this inven- 'tion relates,w during the Aextensive manufactureof the sameand I, therefore, reserve ft;-

the right to make such alterations or changes v asshall fairly fall within the scope of the appended clalms.

.f n What I claim is l:

g 1. Ina mechanism of the class described, apertures 23 for allowing the plate to be Sethe combination with a support, of a gate comprising a plurality of vertical bars on said support, `,movable connecting devices between saidl bars, cam-track devices onV said provided with means for closing the gate tof gether, .and said gate providedwith means for locking it in -a closed position beyond ksaid cam-track devices. f

3. In a mechanism of the class described, the combinationof a cab provided with an overhead track, a plurality of vertical bars, a castin'gon the upper end of each bar, a

pair of rollers carried by said casting and -travelling onthe vupper and lower edge of Vsaid overhead track, movable Y connecting deI vices connecting said bars, Vvided with means connectlng` devices and said cab profor "moving said movable and causing the'bars to ffold or close together when the gate is manun ally operated from an open'position.

y Infaumechanism of the class. described,

the combination of a cab provided with anV overhead track,y a plurality of vertical bars, L-shape castings having their lower ends on said vertical bars, spaced rollers extending outfrom each L-shape casting and engaging of saidl overhead track, mov- `able vconnecting devices on said bars and normallyllocking them in an open position,

`andv said cab provided with means for movmg said connectingdevices Vand causing thev support, and said connecting Vdevices pro'-` bars to `foldprfcollapse togetherwhen the gate is manually yoperated vfrom an Vopen positionry.

5. In atmechanism the combination with of the class described, .ik a support, of agate carried by said support and comprising a plu- Y rality of tubular bars, means holding said bars on ksaid support, each bar provided with a slot, a connectlng'device pivotally mounted in the slots of two Acontiguous bars, :said con-l v nectingy device comprising links, saidlinks being held in a locked position on the'lower.

vices and therebycausing thevbars to close.;v together thereby opening lthe gate.

' contiguous b lapsing the bars.

' gate comprising ing device,

ends of said slots, and means onfsaidsupport for breaking the]l oint of 'said connecting dej 6./n a mechanism of thejclass described, the combination witha support, of a gate' carried by said support and said gate compris-` ing a plurality of vertical tubular bars, said. bars provided with elongated slots, eajch two,y

ars connected by a link connecting device,- the links yoffeach connecting devicel pivotally mounted in the elongated slots-ofv the bars Vandprovided yat their overlapping enter ends with roller, and saidl support g provided withV means for engaging said roller l A and causing. the same tomove vup'wardfor f 20 8. A collapsiblejeleikfator gate, comprising kkbars, Vlinkdevices connecting said bars, and g' `means tto-operating with the central portion Y only of said link devices :tormoving them in signature. 1- y A v f t CASHAN lapse togetheras lga-,teis'inoved to opn ,i *Y j position.

11,.r In a mechanism KV.)fthejclassv described@y the combination with f acab l provided with va -paneLQof cam-'track Vdevices securedfon'` saidy anel each cam-track devicecomrisin va said plate, said vtrackjprovided ,with a horizontal plate, a'trackprovided with ears j j. I

'against cam-like end', and'acollapsible gate provided with means engagingsaid cam-like endsof said tracks Y and' travelling. on'said tracks, i

of afplurality ofV vertical'bars,V connecting de- 'Y wherebyV the gate bar'sfare. collapsed parallel -f withthe panel as theA gate Yis movedfto'open position;rk f 1 ,Y l l Y .12. kIn a collapsible gate, thecombination vices for eachtwo oontiguousbais,,each con-y l. necting device'comprlsing a single link eX-.f`

tending into one extending into Y another (bar, said single 'link its'outerfend'betweenthe outer# extendingV at ends Y ofvsaid ,pair of. links, :af pin extending through the overlapping ends'of said links,:a roller onsaidpin near its outerl end, said links Intestimonyf hereo Y, K

a vertical plane for causing the bars to fold `v together.v

9. In av mechanismof'theclass described, i the combination Vwith-a support, ofan upperl-v 1 *Y and av lowerrvcam-trackjdevice` on said .sup

. each connecting deviceprovided with'memsv l adaped'jw engage a-cam-like end .and enter l veport, each camLtrack device coniririsin'g a i plate, a groovedtracksecnred to vsaid plate, 'I ,45 said grooved trackprovidedrwith a cam endv and with outwardly lflared lips, a collapsible f gate on said support and'includ'ing connecting devices provided'with'.roller s,'gand said rollers p, i7

adapted to pass between? said outwardlylared Y lips and into said end of vsaid trackandl into the Ygrooved track for closing or'colla'psing Y said'gate bars,l contiguous to said Cain-trackV devices as the gateis moved tonopen position.

'7.10.V In a mechanism of theclassdescribed, l Y kthe .combination with acab providedfwith aV panel,fof an'upper and` aVr lower cam-track'` y device within said .panel,each cam-track deV vice provided with a grooved trackhaving aV cam-like'end,f a plurality Vof---`verticalbars i y slida'blypmounted'onsaidcab, connecting de- Y vices for-said bars andadapted to normally lock the bars in spaced open'f'condition, and

the grooved track for vcansing the bars to C01-,A

barand a pair/offlinks adapted to sag downat their'jY connected ,90. ends for locking the barsapart,and means for-Q1. j t engaging,said rollersY andk causing vsame-tof; move upwardlyI for breakingthe jointsfof V "f fthelinks andcausingthebars'tofclose'to f Vgether when vmanually operated.y p f.

` f I'h'ereunt'o aix my i f i ffi05 f Y fie i251k sont., I 

